Learn why correlation—not allocation—is the key to diversification, and how ETFs can help build portfolios with assets that ...

In the first case, there is a strong upward-sloping relationship between X and Y; in the second case, no apparent relationship; in the third case, a strong downward-sloping relationship. Note the ...

Elvis Picardo is a regular contributor to Investopedia and has 25+ years of experience as a portfolio manager with diverse capital markets experience. A negative correlation means that two variables ...